单项选择题
A.depression
B.oppression
C.succession
D.possession
单项选择题 If the circumstances of the case admit，any vessel（）in a narrow channel.
单项选择题 In a crossing situation，a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall，if possible，avoid（）.
单项选择题 In a crossing situation，the stand-on vessel should normally（）.